C++基础(十六)运算符重载(=)

#include <iostream>
using namespace std;

class Godv 
{
public:
	int* m_Num;
	Godv(int num) 
	{
		m_Num = new int(num);
	}
	~Godv()
	{
		if (m_Num != NULL) 
		{
			delete m_Num;
			m_Num = NULL;
		}
	}
	Godv& operator=(Godv &gg)
	{
		if (this->m_Num != NULL) 
		{
			delete this->m_Num;
			m_Num = NULL;
		}
		this->m_Num = new int(*gg.m_Num);
		return *this;
	}
};
int main() 
{
	Godv gg(10);
	Godv gg1(5); 
	gg1 = gg;
	cout << *gg1.m_Num << endl;
	return 0;
}